We have our site served over https, and have the HERE maps api included in some of our pages. We are currently getting Mixed content errors from this api, as I can see it is trying to load images over a xmlhttpRequest. The Map API is currently just showing a blank window, with no map information.
We are using the latest 3.0 version available (Which right now is 3.0.16.0).
Also to note, I have tried the "useHttps = true" solution in this answer: How to call HERE Maps API v3 using HTTPS. As well the documentation seems different from the time that this answer was posted so I cannot look into this rule in the current documentation.
here is the related error, with the filename containing the conflicting xmlHttpRequest: Error Picture.